Status: IN
Composite's universality is validated across both structural and behavioral domains through independent evidence: structurally, Composite-Decorator bidirectional interoperation confirms the recursive infrastructure's compositional integrity; behaviorally, MacroCommand demonstrates that Composite's tree-structured composition (with order-dependent undo semantics) extends to command sequencing — together proving Composite's uniform abstraction operates beyond its structural classification.
Independent structural (Decorator interop) and behavioral (MacroCommand) evidence confirm Composite's cross-classification universality
Depends on (SL): composite-decorator-interoperation-validates-recursive-infrastructure, macrocommand-validates-composite-universality